Street-lamp



(No Model.)

- Patented Ian. 3|, I899. D. .J.. PRENDEBGAST. v

STREET LAMP.

(Application filed Aug. 1, 1898.)

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ilnrrnn STATES PATENT -FFICE.

DANIEL J. PRENDERGAST, OF NEW YORK, N. Y., ASSIGNOR TO THE PENNSYLVANIAGLOBE GAS LIGHT COMPANY, OF PHILADELPHIA,

PENNSYLVANIA.

STREET-LAM P.

SPECIFICATION forming part of Letters Patent No. 618,804, dated January31, 1899.

Application filed August 1, 1898. Serial No. 687,472. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL J. PRENDER- GAST, a citizen of the UnitedStates, residing in the city of New York, in the county of New York andState of New York, have invented certain new and useful Improvements inStreet-Lamps, of which the following is a specification.

The objects of the present invention are to provide a protector forcovering and shielding a mantle or other incandescent and for permittingof the uncovering or exposure of the same in such manner that when themantle is uncovered there are no obstructions such as would interferewith the diffusion of light or tend to cast shadows.

My invention consists of the improvements hereinafter described andclaimed.

The nature, characteristic features, and scope of the invention will bemore fully understood from the following description,taken in connectionwith the accompanying drawing forming part hereof, and in which isillustrated, partly in section and partly in elevation, a street-lampembodying features of my invention.

In the drawing 1 is a WVelsbach or other incandescent burner mounted ina lantern 2, which may be of any appropriate size and shape.

3 is a protector which is used to cover the mantle 4;, as shown in thedrawing, and thereby protected from accidental breakage due to wind whenthe lantern is opened or due to carelessness on the part of any oneengaged in cleaning, adjusting, or otherwise working in the lantern. Oneprotector is shown in the drawing, although several of them may bemounted side by side and connected together in cases where severalmantles or incandescents 4 are employed.

5 are arms, rods, or hangers which carry the protector 3. As shown,these arms, rods, or hangers penetrate openings in brackets projectinglaterally from the protector and are held to place by means ofset-screws 6. These set-screws afford means for adjusting the protectorin respect to the rods and normally serve to immovably connect the rodsand protector.

7 are guides through which the arms, rods, or hangers are afiordedfreedom of motion, so that when the protector is raised the rods, arms,or hangers travel upward through the guides. As shown, the guides 7 arecarried by 'a deflector S, which is frequently provided instreet-lanterns. However, they might be carried in any preferred mannerso long as room is provided above them for the rods or arms.

9 are guides or sockets adapted to receive the lower ends of the arms,rods, or hangers 5 when the protector is in depressed position, and thussupport the protector against such sidewise displacement as might resultin injury to the mantle and as could be produced by accidentallystriking the protector or parts connected therewith in the operation ofcleaning the lantern. These guides or sockets 9 may be carried by arms10, projecting later ally from the burner. 9 are adapted to arrestdownward motion of the rods or hangers 5. provided with stops 11, whichoperate to accomplish this purpose. The nuts-12 afford means foradjusting the sockets or guides 9 vertically. The set-screw 11 may beemployed As shown, they are,

The sockets or guides to engage one of the arms 5 in order to preventaccidental motion of the protector when the lantern is being shipped ormounted in place.

13 is a spring-catch adapted to retain the protector and connected partsin elevated position and to be caused to disengage the protector so asto permit of its descent into the position shown in the drawings.

In use the protector is pushed upward and carries with it the arms,rods, or hangers 5, which work through the guides 7 until finally thecatch 13 engages one of the brackets of the protector and holds it inelevated position. This movement may be readily accomplished from thesidewalk by means of a torch or suitable lighting-stick, which can beinserted through the door 14 and then used to push up the protector andits complemental arms. During this motion of the protector the guides 7serve to direct its motion. When the protector has been thus elevated,the mantle or incandescent 4 is unobstructed because the rods, arms, orhangers 5 do not extend below or opposite to it. In this position theprotector 3 serves to convey products of combustion from the mantle orincandescent through a suitable opening in the deflector 8. This resultis promoted by the outwardly-flaring or funnel-shaped ends a of theprotector. WVhen the light is extinguished or When it becomes desirablefor any reason to cover the mantle, the protector is lowered into theposition shown in the drawing. In this operation the lower ends of therods, arms, or hangers 5 are seated in the guides or sockets 9, whichnot only arrest their motion but also hold them against accidentalsidewise displacement. The attendant in charge may readily lower theprotector by inserting his stick or torch through the door 14:, asbefore, and causing it to release the spring-catch 13, whereupon theprotector and its arms and connected parts will descend under theinfluence of gravity until arrested by the sockets 9 in the positionshown in the drawing.

It will be obvious to those skilled in the art to which my inventionappertains that modications may be made in details without departingfrom the spirit thereof. Hence I do not limit myself to the preciseconstruction and arrangement of parts hereinabove set forth andillustrated in the accompanying drawing; but,

Having thus described the nature and objects of my invention, What Iclaim as new, and desire to secure by Letters Patent, is

1. The combination with a I'Velsbach or other incandescent street-light,of, arms, rods or hangers carrying a protector adapted to cover anduncover the mantle or incandescent, and guides for permitting said armsto slide into the upper portion of the lantern whereby they may notobscure the light when the mantle is uncovered, substantially asdescribed.

2. In combination a street-lantern, a mantle or incandescent and itsaccessories, a protector for covering and uncovering the mantle, andmeans depending from the upper portion of the lantern and constructed topermit of raising and lowering of the protector, substantially asdescribed.

3. In combination a lantern provided with a deflector, a Welsbach orother incandescent light mounted in the lantern, rods movable throughthe deflector and provided with a protector, and guides carried by thedeflector and light and adapted to said rods, substantially asdescribed.

4.. In combination a lantern provided with a VVelsbach or otherincandescent light, a protector adapted to cover and uncover the mantleor incandescent of the light, rods connected with the protector andafforded movement above the mantle and connected with the protector, anda spring-catch for holding the protector and its connected parts inelevated po- 'sition, substantially as described.

In testimony whereof I have hereunto signed my name.

DANL. J. PRENDERGAST.

In presence of CHAS. R. LINDSAY, J12, W. WALTER.

